NF ISO 9181

Tools for pressing - Round punches with 60° conical head and reduced shank

ISO 9181:2007 specifies the dimensions and tolerances, in millimetres, for round punches with a 60° conical head and reduced shank, having shank diameters of 2 mm or 3 mm. ISO 9181:2006 gives examples of materials and hardness, and specifies the designation of punches which meet the requirements of this document.

The main use of punches defined in ISO 9181:2006 is for punching holes in steel sheet. They may also be used for punching holes in other materials.

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